公开(公告)号：US07308162B2

公开(公告)日：2007-12-11

申请号：US10656256

申请日：2003-09-08

Applicant: Anbo Wang

Inventor： Anbo Wang

IPC: G02B6/00 ,  G02B6/34 ,  G02F1/295

CPC classification number: G02B6/29368 ,  G01L1/242 ,  G01L1/246 ,  G01L11/025 ,  G02B6/02052 ,  G02B6/02076 ,  G02B6/2938

Abstract: An intrinsic Fabry-Perot optical sensor includes a thin film sandwiched between two fiber ends. When light is launched into the fiber, two reflections are generated at the two fiber/thin film interfaces due to a difference in refractive indices between the fibers and the film, giving rise to the sensor output. In another embodiment, a portion of the cladding of a fiber is removed, creating two parallel surfaces. Part of the evanescent fields of light propagating in the fiber is reflected at each of the surfaces, giving rise to the sensor output. In a third embodiment, the refractive index of a small portion of a fiber is changed through exposure to a laser beam or other radiation. Interference between reflections at the ends of the small portion give rise to the sensor output. Multiple sensors along a single fiber are multiplexed using an optical time domain reflectometry method.

Abstract translation: 内在的法布里 - 珀罗光学传感器包括夹在两个光纤端之间的薄膜。 当光发射到光纤中时，由于光纤和膜之间的折射率差异，导致两个光纤/薄膜接口产生两个反射，从而产生传感器输出。 在另一个实施例中，纤维的包层的一部分被去除，形成两个平行的表面。 在光纤中传播的光的消逝场的一部分在每个表面反射，产生传感器输出。 在第三实施例中，纤维的一小部分的折射率通过暴露于激光束或其它辐射而改变。 小部分端部反射之间的干扰导致传感器输出。 使用光时域反射法来复用单个光纤上的多个传感器。

公开(公告)号：US20070237476A1

公开(公告)日：2007-10-11

申请号：US11551503

申请日：2006-10-20

Applicant: Tracer Jamison ,  Douglas Keller ,  Philipp Kornreich ,  James Flattery

Inventor： Tracer Jamison ,  Douglas Keller ,  Philipp Kornreich ,  James Flattery

IPC: G02B6/02

CPC classification number: G01L1/242 ,  G01D5/3538 ,  G01M11/088 ,  G02B6/03622 ,  G02F1/0134 ,  G02F1/035 ,  G02F2201/02 ,  G02F2202/20

Abstract: An optical fiber sensor having a central core, a cladding layer disposed about the central core, and a thin film of lithium niobate positioned between the core and the cladding layer. Each of the cladding layer and the central core are made from glass materials having different indices of refraction. The refractive index of the lithium niobate film changes when stress is applied to the optical fiber sensor. Accordingly, stress may be detected and measured by detecting and measuring the modulation of light passing through the optical fiber sensor while the stress is occurring.

Abstract translation: 一种光纤传感器，其具有中心芯，围绕中心芯设置的包层，以及位于芯和包覆层之间的铌酸锂薄膜。 每个包层和中心芯由具有不同折射率的玻璃材料制成。 当对光纤传感器施加应力时，铌酸锂薄膜的折射率发生变化。 因此，可以通过在发生应力的同时检测和测量通过光纤传感器的光的调制来检测和测量应力。

公开(公告)号：US07142736B2

公开(公告)日：2006-11-28

申请号：US10919547

申请日：2004-08-16

Applicant: Jayantilal S. Patel ,  Zhizhong Zhuang ,  Yuri Zadorozhny

Inventor： Jayantilal S. Patel ,  Zhizhong Zhuang ,  Yuri Zadorozhny

IPC: G02B6/00

CPC classification number: G08B13/124 ,  G01L1/242 ,  G01M11/39 ,  G08B13/186

Abstract: Polarization effects are managed to provide differential timing information for localizing disturbances affecting two or more counter-propagating light signals on one or more optical waveguides passing through a detection zone. Activity can be localized to a point for a security perimeter. Events causing optical disturbance can be mapped to points along a straight line, a perimeter or arbitrary pattern or an array. Events cause local changes in optical properties in the optical waveguide, in particular an optical fiber. Short term local changes are distinguishable from phase changes of light travel in the waveguide by managing the polarization state of input and output beams.

Abstract translation: 管理极化效应以提供差分定时信息，用于定位影响通过检测区域的一个或多个光波导上的两个或多个反向传播光信号的干扰。 活动可以本地化到安全边界的一个点。 导致光学干扰的事件可以映射到沿直线，周边或任意图案或阵列的点。 事件导致光波导中光学特性的局部变化，特别是光纤。 通过管理输入和输出光束的偏振状态，短波局部变化与波导中的光行进的相位变化是不同的。

公开(公告)号：US20060233485A1

公开(公告)日：2006-10-19

申请号：US11385150

申请日：2006-03-21

Applicant: Donald Allen

Inventor： Donald Allen

IPC: G02B6/00

CPC classification number: F17D5/00 ,  G01D5/35303 ,  G01K1/143 ,  G01L1/242 ,  G01M5/0025 ,  G01M5/0041 ,  G01M5/0066 ,  G01M5/0091 ,  G01M11/083 ,  G02B6/29317

Abstract: A system for remotely detecting properties of an underwater structure in a body of water comprising a sensor connectable to the structure; a first receiver which can be positioned at or near a top surface of the body of water in the proximity of the structure; a first transmitter for transmitting property information from the sensor to the first receiver; and a second transmitter for transmitting the property information to a second receiver which can be located at a remote location.

Abstract translation: 一种用于远程检测水中水下结构的属性的系统，包括可连接到该结构的传感器; 第一接收器，其可以定位在结构体附近的水体的顶表面处或附近; 用于将属性信息从所述传感器传送到所述第一接收器的第一发射器; 以及第二发送器，用于将属性信息发送到可位于远程位置的第二接收器。

公开(公告)号：US07030974B2

公开(公告)日：2006-04-18

申请号：US10792163

申请日：2004-03-03

Applicant: Vasilii V. Spirin ,  Mikhail G. Shlyagin ,  Serguei V. Miridonov ,  Francisco J. Mendieta Jimenez ,  Alfredo Márquez Lucero ,  Enrique Mitrani Abenchuchan

Inventor： Vasilii V. Spirin ,  Mikhail G. Shlyagin ,  Serguei V. Miridonov ,  Francisco J. Mendieta Jimenez ,  Alfredo Márquez Lucero ,  Enrique Mitrani Abenchuchan

IPC: G01N21/00

CPC classification number: G01L1/242 ,  G01D5/35345 ,  G01D5/35354 ,  G01D5/35377 ,  G01L1/246 ,  G01M3/047

Abstract: This invention pertains to alarm condition fiber optic sensor with storage transmission-reflection analyzer for detection and localization of any number of consecutive loss-inducing disturbances along the test fiber.

Abstract translation: 本发明涉及具有存储透射反射分析仪的报警条件光纤传感器，用于检测和定位沿着测试光纤的任何数量的连续损耗诱导干扰。

公开(公告)号：US06996316B2

公开(公告)日：2006-02-07

申请号：US10098891

申请日：2002-03-18

Applicant: Timothy J. Bailey ,  Robert N. Brucato ,  Alan D. Kersey ,  Martin A. Putnam ,  Paul Sanders ,  James Sullivan

Inventor： Timothy J. Bailey ,  Robert N. Brucato ,  Alan D. Kersey ,  Martin A. Putnam ,  Paul Sanders ,  James Sullivan

IPC: G02B6/02 ,  G02B6/34 ,  G02B6/22 ,  H01S3/067

CPC classification number: G01L1/242 ,  G02B6/02057 ,  G02B6/274 ,  G02B6/2817 ,  G02B6/2821 ,  G02B6/2826 ,  G02B6/29334 ,  G02B6/4214 ,  H01S3/06708 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094019

Abstract: A large diameter D-shaped optical waveguide device 9, includes an optional circular waveguide portion 11 and a D-shaped waveguide portion 10 having at least one core 12 surrounded by a cladding 14. A portion of the waveguide device 9 has a generally D-shaped cross-section and has transverse waveguide dimension d2 greater than about 0.3 mm. At least one Bragg grating 16 may be impressed in the waveguide 10 and/or more than one grating or pair of gratings may be used and more than one core may be used. The device 9 provides a sturdy waveguide platform for coupling light into and out of waveguides and for attachment and alignment to other waveguides, for single and multi-core applications. The core and/or cladding 12,14 may be doped with a rare-earth dopant and/or may be photosensitive. At least a portion of the core 12 may be doped between a pair of gratings 50,52 to form a fiber laser or the grating 16 or may be constructed as a tunable DFB fiber laser or an interactive fiber laser within the waveguide 10. The waveguide may resemble a short “block” or a longer “cane” type, depending on the application and dimensions used.

Abstract translation: 大直径D形光波导器件9包括可选的圆形波导部分11和D形波导部分10，其具有被包层14包围的至少一个核心12。 波导器件9的一部分具有大致D形的横截面并且横向波导尺寸d 2大于约0.3mm。 可以在波导10中施加至少一个布拉格光栅16，和/或可以使用多于一个的光栅或一对光栅，并且可以使用多于一个的芯。 器件9提供了一个坚固的波导平台，用于将光耦合到和流出波导，并用于连接和对准其他波导，用于单核和多核应用。 芯和/或包层12,14可掺杂稀土掺杂剂和/或可以是光敏的。 芯12的至少一部分可以掺杂在一对光栅50,52之间以形成光纤激光器或光栅16，或者可以被构造为波导10内的可调DFB光纤激光器或交互光纤激光器。波导 可能类似于短的“块”或更长的“手杖”类型，具体取决于所使用的应用和尺寸。

公开(公告)号：US20060001863A1

公开(公告)日：2006-01-05

申请号：US10535572

申请日：2002-11-27

Applicant: Kinzo Kishida ,  Kazuyoshi Itoh ,  Motohiro Nakano ,  Masayuki Matsumoto ,  Hiroyuki Toda ,  Yong Wang ,  Yoshiaki Yamauchi

Inventor： Kinzo Kishida ,  Kazuyoshi Itoh ,  Motohiro Nakano ,  Masayuki Matsumoto ,  Hiroyuki Toda ,  Yong Wang ,  Yoshiaki Yamauchi

IPC: G02B6/00

CPC classification number: G01D11/30 ,  G01D5/353 ,  G01D11/245 ,  G01L1/242 ,  G01M11/085 ,  G02B6/14 ,  G02B6/3628

Abstract: An optical fiber measuring module is provided with an optical fiber cable (2) including an optical fiber core (2a), a cladding (2b) and a covering layer (2c), a base member (3) for holding the optical fiber cable (2), and an attachment member (4) for attaching the base member (3) to a structure (1).

Abstract translation: 光纤测量模块设置有包括光纤芯（2a），包层（b）和覆盖层（2c）的光纤电缆（2），用于保持光学元件的基座（3） 光纤电缆（2）和用于将基座部件（3）安装到结构（1）上的安装部件（4）。

公开(公告)号：US06931188B2

公开(公告)日：2005-08-16

申请号：US10371910

申请日：2003-02-21

Applicant: Alan D. Kersey ,  John L. Maida

Inventor： Alan D. Kersey ,  John L. Maida

IPC: E21B47/12 ,  G01L1/24 ,  G01L11/02 ,  G02B6/02 ,  G02B6/024 ,  G02B6/26 ,  G02B6/00 ,  G02B6/20

CPC classification number: G02B6/02314 ,  E21B47/123 ,  G01L1/242 ,  G01L1/245 ,  G01L1/246 ,  G01L11/025 ,  G02B6/021 ,  G02B6/022 ,  G02B6/02338 ,  G02B6/024 ,  G02B6/028 ,  G02B6/0281 ,  G02B6/262

Abstract: A side-hole optical cane for measuring pressure and/or temperature is disclosed. The side-hole cane has a light guiding core containing a sensor and a cladding containing symmetrical side-holes extending substantially parallel to the core. The side-holes cause an asymmetric stress across the core of the sensor creating a birefringent sensor. The sensor, preferably a Bragg grating, reflects a first and second wavelength each associated with orthogonal polarization vectors, wherein the degree of separation between the two is proportional to the pressure exerted on the core. The side-hole cane structure self-compensates and is insensitive to temperature variations when used as a pressure sensor, because temperature induces an equal shift in both the first and second wavelengths. Furthermore, the magnitude of these shifts can be monitored to deduce temperature, hence providing the side-hole cane additional temperature sensing capability that is unaffected by pressure. Additionally, the side-hole cane can be used to measure a differential pressure between a first pressure ported to the side-holes and a second external pressure.

公开(公告)号：US20040206893A1

公开(公告)日：2004-10-21

申请号：US10824353

申请日：2004-04-15

Inventor： Keiichi Sato

IPC: G01J001/04 ,  G01T001/20

CPC classification number: G01M5/0033 ,  B29C65/8215 ,  B29C65/823 ,  B29C65/8253 ,  B29C65/8292 ,  G01L1/242 ,  G01M5/0091 ,  G01M11/086 ,  G01N21/8806 ,  G01N21/954

Abstract: A bond separation inspection method using an optical fiber sensor. The method includes a step of embedding a sensor part of an optical fiber sensor in an adhesive joining a plurality of members together. The sensor part is embedded in the adhesive in such a way that the sensor part undergoes a compressive strain. Separation of the bond is detected on the basis of an optical characteristic of the sensor part when light from a light source is directed into the optical fiber sensor.

Abstract translation: 使用光纤传感器的粘合分离检查方法。 该方法包括将光纤传感器的传感器部分嵌入将多个部件连接在一起的粘合剂的步骤。 传感器部分以传感器部件经受压缩应变的方式嵌入粘合剂中。 基于来自光源的光被引导到光纤传感器中时，基于传感器部分的光学特性来检测键合的分离。

公开(公告)号：US20040114848A1

公开(公告)日：2004-06-17

申请号：US10656256

申请日：2003-09-08

Inventor： Anbo Wang

IPC: G02B006/00

CPC classification number: G02B6/29368 ,  G01L1/242 ,  G01L1/246 ,  G01L11/025 ,  G02B6/02052 ,  G02B6/02076 ,  G02B6/2938

Abstract: An intrinsic Fabry-Perot optical sensor includes a thin film sandwiched between two fiber ends. When light is launched into the fiber, two reflections are generated at the two fiber/thin film interfaces due to a difference in refractive indices between the fibers and the film, giving rise to the sensor output. In another embodiment, a portion of the cladding of a fiber is removed, creating two parallel surfaces. Part of the evanescent fields of light propagating in the fiber is reflected at each of the surfaces, giving rise to the sensor output. In a third embodiment, the refractive index of a small portion of a fiber is changed through exposure to a laser beam or other radiation. Interference between reflections at the ends of the small portion give rise to the sensor output. Multiple sensors along a single fiber are multiplexed using an optical time domain reflectometry method.

Abstract translation: 内在的法布里 - 珀罗光学传感器包括夹在两个光纤端之间的薄膜。 当光发射到光纤中时，由于光纤和膜之间的折射率差异，导致两个光纤/薄膜接口产生两个反射，从而产生传感器输出。 在另一个实施例中，纤维的包层的一部分被去除，形成两个平行的表面。 在光纤中传播的光的消逝场的一部分在每个表面反射，产生传感器输出。 在第三实施例中，纤维的一小部分的折射率通过暴露于激光束或其它辐射而改变。 小部分端部反射之间的干扰导致传感器输出。 使用光时域反射法来复用单个光纤上的多个传感器。